Genuine Cosworth YB 2.0L DOHC Engine featuring the iconic 16-valve cylinder head with red valve cover. This naturally aspirated YBM-spec engine was machined in 2012 and dyno-tested at 182.6 HP and 158.4 lb-ft by Ivey Engines Inc. It has not been started since 2013.

Sale includes the removed dual 48mm Weber carburetors, headers, spare camshafts, partial service records, and the original 2012 dyno sheet. A rare opportunity for a Sierra RS Cosworth restoration, race build, or collector's project.